Stainless Steel Tubes & Profiles for Industrial, Structural and Mechanical Applications

OTK Stainless Steel B.V. supplies a complete range of stainless steel tubes, hollow sections and custom-engineered profiles for demanding environments. Our products are manufactured in Europe under controlled quality systems, ensuring consistent material properties, reliable tolerances and full traceability according to EN and ASTM standards.

We support construction firms, machinery builders, fabricators, OEM manufacturers and engineering companies with stable supply, technical accuracy and fast delivery for both stock-grade materials and special production based on drawings.

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Product Range

OTK supplies a broad portfolio of stainless steel tubes and structural profiles suitable for industrial and architectural applications.

Standard Tubes

• Welded round tubes
• Square hollow sections (SHS)
• Rectangular hollow sections (RHS)
• Mechanical tubes for construction and machinery fabrication

Structural Profiles

• Equal and unequal angle profiles
• U-channels and C-channels
• T-profiles
• Flat bars, strips and folded profiles
• Laser-welded or plasma-welded profiles with tight tolerances

Custom and Special Profiles (Butting-type / Montanstahl-type)

On request, we supply engineered stainless profiles including:
• Precision-formed open profiles
• Closed welded profiles
• Thick-wall profiles for high-load applications
• High-precision drawn profiles
• Special geometries manufactured from coil or plate
• Profiles produced according to customer drawings and technical specifications

These are suitable for machine building, hydraulics, offshore structures, filtration systems, lifting equipment and automated production lines.

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Materials and Grades

All materials are sourced from certified European mills.

Austenitic Grades

• AISI 304 / 304L
• AISI 316 / 316L
• AISI 321 (on request)

Ferritic Grades

• AISI 409
• AISI 430
• AISI 439 / 441

Duplex and High-Strength

• 1.4362 (2304)
• 1.4462 (2205)
• High-strength grades for applications with increased load requirements

Non-standard grades or special corrosion-resistant types are available upon request depending on project requirements.

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Dimensions and Tolerances

We supply stainless steel tubes and profiles in a wide dimensional range suitable for structural, mechanical and architectural use.

• Diameters and side widths from approximately 10 mm to 300 mm
• Wall thicknesses from 1.0 mm to 10.0 mm (higher thicknesses on request)
• Standard lengths: 6.0 m
• Fixed-length cutting available
• Tight-tolerance production available for automated assembly and welding systems

All tolerances follow the relevant EN or ASTM standards or specific project requirements.

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Applications

Our stainless steel tubes and profiles are used in:
• Structural and architectural construction
• Mechanical engineering and machine frames
• Production lines, conveyors and support structures
• Food processing and hygiene installations
• Water treatment and filtration systems
• Offshore and marine construction
• Safety structures, handrails, ladders and industrial platforms
• Electrical cabinet frames, instrumentation housings and mounting systems

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Quality and Certification

All materials are delivered with:
• EN 10204 3.1 certificates
• Full heat/batch traceability
• Verified chemical composition (EN 10088)
• Verified mechanical properties (yield strength, tensile strength, elongation)
• Dimensional inspection according to EN or ASTM standards

Optional:
• 3.2 inspection by TÜV, SGS, Bureau Veritas or Lloyd’s
• Ultrasonic, penetrant or radiographic testing
• Corrosion and intergranular testing for critical environments
• Surface finish verification (2B, BA, No.1, brushed, ground)

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Reliable European Sourcing and Processing

OTK Stainless Steel B.V. cooperates with certified European mills and service centres to ensure:
• Consistent material quality
• Reliable mechanical properties
• Precision cutting and fabrication
• Short lead times for both stock and production items
• Customized packaging suitable for export
• Mixed loads of tubes, sheets, coils and profiles when required

Our supply chain supports both ongoing production schedules and one-time project-based demand.

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Request a Quote

Send us your material list including grade, dimensions, wall thickness, length and quantity. We will prepare a competitive quotation with clear delivery terms and technical details.

Email: info@otk-stainless.com
Phone: +31 202 157 147